Mid year science review
Chemistry, earth history, infectious diseases
Groups/periods on a periodic table: columns up and down
Law of conservation of mass:matter can be changed from one form to another
Elements, compounds, mixtures:Any substance that contains only one kind of an atom is a mixture
physical chemical properties: physical does not change the chemical change of matter.
chemical does not change chemical nature.
physical chemical change: chemical a chemical that is mixed with a chemical to make it change
physical cutting or something that will make it still be the same but look different